| Issue |
170651
|
| Summary |
[Flang] Doubt on maximum file that we can pass to flang?
|
| Labels |
bug,
flang
|
| Assignees |
|
| Reporter |
Thirumalai-Shaktivel
|
I have the following lit testcase
```
# DEFINE: %{PATH} = /tmp
# DEFINE: %{TEST_FILE} = %{PATH}/test_max_files.f90
# DEFINE: %{MAX_FILES} = 8000
# RUN: mkdir -p %{PATH}/files
# RUN: rm -rf %{PATH}/files/*
# RUN: bash -c ' \
# RUN: for i in $(seq 1 $0) ; do \
# RUN: echo -e " \
# RUN: subroutine sub_$i()\n \
# RUN: print *, \"Subroutine $i\"\n \
# RUN: end subroutine sub_$i" > $1/files/sub$i.f90; \
# RUN: done' %{MAX_FILES} %{PATH}
# RUN: echo " program test" > %{TEST_FILE}
# RUN: bash -c ' \
# RUN: for i in $(seq 1 $0); do \
# RUN: echo " call sub_$i()" >> $1; \
# RUN: done' %{MAX_FILES} %{TEST_FILE}
# RUN: echo " print *, \"PASS\"" >> %{TEST_FILE}
# RUN: echo " end program test" >> %{TEST_FILE}
# RUN: cd %{PATH}/files/ && flang-new %{TEST_FILE} *.f90 -o %t && %t | FileCheck %s
# CHECK: PASS
```
This generates 8000 files with a subroutine and compiles along with the program file. This test fails as "error: unable to execute command: posix_spawn failed: Argument list too long" using flang-new
What is the maximum files or characters that we can specify to flang?
Is this an issue that we need to fix?
GFortran compiles and runs for 15,000 files
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